<?php
require_once '../../libs/app.config.php';
session_start();
session_register("login_check_number");
$img_height=55;
$img_width=25;
$codeNum=4;
$vc = new ValidationCode($img_width,$img_height,$codeNum);


//把验证码字符保存到session
$_SESSION["login_check_number"] = $vc->getCheckCode();

$vc->showImage();

?>